— My first Grand Prix is a blast to drive! Acceleration is excellent, love to hear the 4bbls kick in and sometimes do burnouts. Always reliable, driven across country a few times in it since 1993. Gets ...
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— It was a fantastic vehicle. Bought it from an older gentleman andd it was immaculate. 455 engine was super fast and solid. In 1975 cost was nothing and it was extremely fun to drive. God, wish I sill ...
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1970 Pontiac Grand PrixOverview

It's not easy being a trendsetter. They say imitation is the sincerest form of flattery, but try telling that to the 1970 Pontiac Grand Prix, whose sales dove nearly 40% due to the introduction of the Monte Carlo and Cutlass Supreme, which were clearly copying the styling of the successful mid-sized two-door coupe.The big change in the 1970 Grand Prix was a new engine. The 428 vanished, its powerful spot taken up by the new 455 V8, supposedly the largest engine ever put inside a Grand Prix. It hit 370-hp and 500 lb-ft of torque. The 400 V8s remained the same, at either 265-hp with the 2-barrel carb or 350-hp with the 4-barrel. In addition to the J and SJ trims, a limited number of custom-built Hurst SSJ Grand Prix were sold in 1970. These were J models shipped out to Hurst, who installed an electric sunroof, Hurst shifter, gold Rally II wheels, and special body-colored sport mirrors.

Outside, vertical slats replaced horizontal ones in the grille and the nameplate was moved to the side rear of the car. Also new in the 1970 Grand Prix were standard power front brakes. The bench seat returned as an option, but as part of a package that forced you to get automatic transmission and a steering wheel-mounted shifter. While bucket seat models featured the shifter and glove box in the center floor console, the glove box in bench models was now in the dashboard.

Updated Jan 15, 2007

What's your take on the 1970 Pontiac Grand Prix?

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piaboy i recently purchased a 1970 pontiac grand prix J not aS/J it has thelast vin numbers stamped on the block. I thought it was 400. The g/p would run circles around my 69 firebird 400 which has been rebuilt and blanced. I checked the block code which YH that denotes as a full pontiac 455 4 barrel 360 hp for full size cars ...what i can find on the web is that is not a correct block code for a grand prix. i purchased the car from someone that just flip it when the original owner passed away...........any thought............i positive thelast didgits of the vin are stamped on the block lower then the block code on the right hand cyclinder block...any thoughts

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GuruZY74P I had one in 1976 paid 950.00 for it and the BEST running car even better than my 1967 GTO...these cars are the best